Pump



April 2, 1946. E. w. GUTscH PUMP Original Filed July 21, 1941 @n f mmv @La om `ERNEST W. GU TSCH Patented Apr. 2, 1946 UNITED STATES ATE'NT OFFICE PUMI ErnestW. Gutsch, Viroqua, Wis.

Original application July 21, 1941, Serial No. 403,287. Divided and this application January 21, 1944, Serial No. 519,229

(Cl. 10S-44) 6 Claims.

My invention relates to pumps, and has for its object to provide a pump structure having power means above the surface of the ground and the pumping means located either above or beneath the surface of the water and having operative contact between the power means and the pumping means through one or more columns of water.

In practice pumps, such as hand pumps, have provided a piston and cylinder located at some point from adjacent the power means at the top to a point even below the surface of the water, said piston being connected by a rod to the power means whereby the water is successively lifted by the power means, such as the down-stroke of an ordinary pump handle, to the point where it may discharge from the pump, In such constructions the pump proper must always be located below the point to which suction, that is pressure of the air upon the water translated through the pump connections to the vacuum point, can raise the water the requisite distance. In hand pumps where the water line is relatively close to the surface, the cylinder may therefore be in the pump body itself. Where the depth of the Water becomes greater it may, as stated above, be located at any point down the well at suflicient depth to assure that air pressure added to the lift of the pump will raise the water.

Where the cylinder has to be at a considerable -depth below ground, long connecting rods have to be employed with guides for enabling them to operate, resulting in frictional losses of power and mechanical difficulties caused by wear andinjury to and mis-positioning of the connecting rods.

I have discovered that a pumping piston may be operated wholly by water pressure generated in a pressure cylinder with connections leading to the pumping cylinder such that the movement of a small amount of water applied to an enlarged surface of the pumping piston will produce a convenient and effective means of transmitting the power necessary to operate the pumping piston, thus eliminating connecting links, with the loss of energy through friction and maintenance which go with them, and with highly eiective application of power to the pumping piston.

I have also discovered that exactly the same principle of operation may be eiectively employed where the pumping arrangement and all its parts are entirely immersed in the water of the well.

It is a principal object of my invention, therefore, to provide a pumping means in association with a power means, said power means acting upon water in a pressure cylinder, in conjunction with means for conducting the Water to the pumping piston in such a manner that the pressure may be applied over a piston area greatly in excess of the cross-sectional area of the conducting means. p

It is a further object of my invention to provide a hollow pumping piston having a chamber formed therein andvhaving a flexible diaphragm dividing the chamber into two parts with pairs of hollow guide rods and with valve means opening the passages therethrough into the chamber in the piston and of moving the columns of water alternately on opposite sides of the diaphragm to apply force to said chamber and the piston enclosing it. v

It is a further object of my invention to provide the hollow piston with a flexible diaphragm dividing the space therein into two parts and having valves operable within the chamber on the inside of said piston on' opposite sides of the diaphragm so that as the pressure column of water is applied' alternately on either side of the lpiston to move it in either direction the other side of the piston will be blocked against movement of water through the piston.

It is a further objectof my invention to provide a pumping piston having therein a chamber divided into two parts by a diaphragm in association with closure valves.

This 'application is a division of my co-pending application, Serial No. 403,287, filed July 21, 1941, which on' January 25, 1944 issued as Patent No. 2,339,990.

The full objects and advantages of my invention will appear in connection with the detailed description thereof which will now be given as a part of this specication, and the novel features by means of which the above noted advantageous results are obtained will be particularly pointed out in the claims.

In thev drawing illustrating an application of my invention in some of its forms:

Fig. 1 is a side elevation view of a pumping construction in one form and with pumping parts mounted to move in a horizontal direction ernbodying my invention.

Fig. 2 is a considerably enlarged sectional View of the valve member shown in Fig. 1, showing one 'of the valves open and the central diaphragm pushed in.

charge means for the water pump (not shown). Below the valve chamber I2 is a second valve chamber I 6 which communicates through an opening I'I by any suitable means (not Shown) with a source of water supply, A valve I8 opens from valve chamber I6 into a chamber I9 whichcommunicates through a passageway with internal end portion 2| of the pumping chamber formed within pumpingcylinder 22. Asecond. valve 23l opensf from Valve chamber I6 into aV chamber 24 which communicates through passageway 25 with a second pumping chamber 2E within the pumping cylinder 22. The chambers. I9 and 24 are separated by a partition 21 and chambers 2I and 26 are separated by a pumping,

piston 28.

Since the piston 28 is causedt'o move backand.. forth in the piston cylinder 2'2' the chambers seal in. a exibl'e diaphragm.A 3f, formed with a central chamber. 321,. The sections 29l andi 38 are permanently, secured. together in @Well-known way |bymeanslvnot shown. Section 29 isprovided with a tubular boss 33 which has mountedltherein an elongated tube 34 opening, into the chamber 35formedlwitln the piston ,at' one side-,of the diaphragm 3l'. Similarly, the section 3U" is formed" with a tubular boss 3,6`which hasextend.-

ing therethrough an' elongatedtube. 3,1. Tube 31 opens into a chamber 38' formed" in the piston on the opposite side` offdiaphragm, 31'.4

As indicated. at139"and4ll` the tubes 34 and` 31 are open at their respective ends.v Eachorthese tubes extends through a sealingy bushing 4l' for tube 34 and 42"for tube 3T. The, sealing bushings also serve as a guidey and bearing for sliding movements ofv the. respective tubes. Tube 324'.' is adapted toexten'd' into ach'arnber 4J3`fbrmed`loy. a casing extension 44 andtube 3T'is; adapted toextiend' into a chamber 45V formed-by a casing. eX- tension 46..

The interior of" thek pressure cylinder, I IC is divided into two chambers 4'I and 48.by means of av double pistcn'mernber `4'Sl1--5`IT'fa'st-on a power rodI'. The chamber dout'sid'e of sealing, bushingV andv bearingjsleeve 41` communicates. through atube 52`anda passageway 53'with thek pressure chamber 412 Similarlyv the chamber 45," contrmunicates'outside of sealing bushingand; bearing sleeve 4I through a tube 54 anda passageway; 55 with the pressure chamber 48.

The power rodx '51" isb shown pivotally connected at 5E tot a' lever 5T which in` turn isipivotedjat 5% tc a lli/1h59 pivoted at Gllto a" bracket SI fast on the casing I8: Thisfurnishes a" power means for operating the piston 4-50to puttpressure in the1 column' ofiwaterj in either' chamber: 41'01'. 48. 'I-hisL wouldi be for ahand operated pump;. but obviously anyoth'er type orpower means such as a prime mover may be employed for the purpose o reciprocating; the compound piston' 45T- 511:

'I-l'ieV pumping piston 2 8has; aA valve 62'. located at theopenirrgoftube' 34i'r1t'oT chamber35.y Simi.- larly" there' is a4 valvel-`f3"whi'chY is. positibnedtlo open the errdof tubeL 3T into chamberA 38..

ber-451i, passageway 53- and` 52, chamber 43, and' tube-y 341 upon thevalve' 62 which will thereby be forced open and the pressure in turn Will be transmitted to the collapsed diaphragm 32 being multiplied by the area of that diaphragm. The pressure on the other side of the piston 28 is zero or negativel with the result that the pump piston is moved toward the left, thus forcing the water fromv chamber 26 through passageway 25 into chamber 2.4 and thence through valve I4 into outlet chamber I2 and thence through opening I5,z toi the out-flow of the pump. At the same time that chamber 2| is expanded it will draw waterA from the source of supply through inlet openingY I'l, chamber i6, Valve l8'and passage 26'. lIpon1 reversal of the movement of lever 5l the pressure piston`- dBiwill move alon'githe eX'- pa-nde'd" chamber 48 causing the pressure to be transmitted through passageway tube 54, chamber 45; and through the open end 48 of tube E'I-againstvalve 63 which' is therebyl forced open, collapsingl diaphragm- 31', thus transmitting` the pressure force upon the whole ofthe inside Wall of chamber 38a This will result in moving the pum-pingY pistonl 28 in the opposite directionforcingwater from chamber 2'I through passageway 2lb, into chamber ISL, and past ValveY I3 andout'let opening" Il5finto-thewater delivery. Atv the same time the'expandingH chamber 25 will draw water through passagewayv 25", chamber 24, past-@Valve 23, fromcliamber I6; and inlet opening Hf, from the sourceof supply.

There-will thus, be not only-a continuous flow of.' Waterl wherein theY powerY applied to the Dresthepressurecylind-er'itself andfall offthe conduits leadingV` therefromy to andl includingV theinterior chamber* of` theL hollowv` piston. and includ'ing the holllowil tubular guidevv members connectedY there-'- withi. are`= continuously kept completely flledfwit-h watergtheiresult' i's-at the same timeto eliminate mechanical. connections.j and?4 parts; tofsubstantiazlly. eliminatefri'ction and tomultiplyfdistrlbute thee power applied tolth'eapumpingpiston over' sub*- stantiall'y its entirea-re'a' in: operating itk first" in enel-direction and` then in theother:

Ai furtherL advantage is the ease and simplicity with thestreamofs water; beingV pumped is controlled and moved from thewell".v vOther 'advantafges' reside in the general' simplicity of' con'- struct'iorr, a construction embodyingrelatilvely few parts an'dlthe fact'v that it isa constructionwhich lends, it'selffwth unusual efficacy" to. the produc,.- tion. of smallihand'. pumps.

Ilclaimn K Y Y l1.. A pumpincluding. apressure cylinderfapislton therein dividing it into two chambers, a pump cylinder of larger diameter than the pressure cylinder, a piston in said pump cylinder dividing it into two chambers, said last-named piston being formed to provide an interior chamber eX- tending over the greater part of the total area of the pump piston, a diaphragm wall dividing said chamber into two parts, conduits leading from the respective chambers of the pressure cylinder to the interior `of said pump piston from opposite sides of said diaphragm wall, all of said cylinders, chambers and conduits being at al1 times iilled with liquid, part of said conduits including hollow piston rods connected to convey fluid pressure from opposite sides of the pressure piston to the interior of the pump piston from opposite sides to the diaphragm wall,

2. A pump including a pressure cylinder, a piston therein dividing it into two chambers, a pump cylinder of much larger diameter than that of the pressure cylinder, a piston in said pump cylinder dividing it into two chambers, said lastnamed piston being formed to provide an interior chamber extending over the greater part of the total area of the pump piston, a diaphragm wall dividing said chamber into two parts, conduits including hollow slidable piston rods leading from the respective chambers of the pressure cylinder to the interior of said pump piston at opposite sides of said diaphragm wall, valves cooperating with the opening from said hollow piston rods into the piston chamber and actuating to alternately open and close the same in response to alternate iiuid pressure impulses through said hollow piston rods on opposite sides of the pum'p piston, all of said cylinders, chambers and conduits being at all times filled with liquid.

3. A pump including a pressure cylinder, a piston therein dividing it into two chambers, means for reciprocating said piston, a diaphragm wall dividing said chamber into two parts, a pump cylinder of larger diameter than the pressure cylinder, a piston in said pump cylinder dividing it into two chambers, said last named piston being formed to, provide an interior` chamber extending over the greater part of the total area of the pump piston, a diaphragm wall dividing said chamber into two parts, conduits including hollow slidable piston rods leading from' the respective chambers of the pressure cylinder to the interior of said pump piston at opposite sides of the diaphragm wall, all said cylinders, chambers and conduits being at all times lled with liquid, exhaust and inlet passageways connecting with the chambers in the pump cylinder, and check valve means in the respective exhaust and inlet passageways to control movement of liquid into and out of each of said rst named chambers for effecting continuous delivery of liquid when the pressure piston is reciprocating.

4. A pump for liquid including a pressure cylinder, a double acting plunger in said cylinder, means for reciprocating said plunger, a pump cylinder, a hollow double acting piston within said pump cylinder, hollow piston rods projecting from the sides of said piston in said pump cylinder, a diaphragm wall in said pump cylinder piston, passageways leading from either side of the plunger in said pressure cylinder to said hollow piston rods and diaphragm wall, said pressure and pump cylinders and said passageways leading thereto being lledwith liquid, exhaust and inlet passageways connecting with said pump cylinder on either side of the piston thereof, and pairs of check valves leading to said outlet and inlet passageways.

5. A double acting pump including a double acting pressure cylinder and piston means, a double acting pump cylinder and hollow piston means, inlet and outlet passageways, conduit passageways leading from either side of the piston in said pressure cylinder to the enlarged inside area of the pump piston, a-diaphragm wall in said hollow pump piston separating said passageways, passageways leading from either. side of the piston in said pump cylinder to said inlet and outlet passageways, and pairs of check valves in said passageways leading from either side of the piston in the pump cylinder, whereby when the pressure piston is moved in one direction and all of the passageways are filled with liquid, the iiuid pressure from said pressure cylinder wil1 be directed through a small conduit against the diaphragm in the enlarged area in the inside of the hollow pump piston operating the pump piston to force liquid out of the pump cylinder and out of one of the exhaust valves and causing liquid to be drawn in through said inlet opening past one of the inlet check valves and into the pump cylinder, and when the pressure piston is operated in the opposite direction, the reverse operation takes place, thereby providing a double acting D11-mp.

6. A pump including a pressure cylinder, a reciprocable piston in said pressure cylinder, means for operating said piston, a pump cylinder, a hollow double acting piston in said pump cylinder, an outlet chamber, a pair of check valves in said outlet chamber, an inlet chamber, a pair of 'check valves in said inlet chamber, an enlarged area formed in said pump piston, a flexible disc-like diaphragm Wall dividing the space in said hollowpump piston, hollow piston rods leading to the spaces in the pump piston on opposite sides of the diaphragm wall, conduits connecting either side of said pressure cylinder to said hollow piston rods, and a volume of liquid maintained in the passageways leading from either side of the piston in said pressure cylinder to the hollow piston rods and spaces on opposite sides of the diaphragm wall in the piston of the pump cylinder to provide a conned fluid means for reciprocating the pump piston to force liquid in and out of said pump by the reciprocation of said pressure piston.

ERNEST W. GUTSCH. 

